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secondary 4 | A Maths
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Christmas MT
Christmas MT

secondary 4 chevron_right A Maths chevron_right Singapore

Can sb help me w 32? I keep getting -2sin^2x -4sinx+1 which is unfactorisable so idk how to get the a+ b thing. Tqtq

Date Posted: 5 years ago
Views: 450
Eric Nicholas K
Eric Nicholas K
5 years ago
In fact, the fact that the term 'a' is present means that the expression is very likely unfactorisable (if 'a' does not exist, then the expression would have been easily factorisable).

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Eric Nicholas K
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5997 answers (Tutor Details)
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Essentially a completing the square thing.
Christmas MT
Christmas MT
5 years ago
Oh I didn’t realise. Okay thank u